Word: dust
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Dates: during 1960-1969
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...time (Long ago, the general was: "if there's so much of it, be very valuable," and the thus fell into disrepute.), a Bee (b-e-e-), a Humbug whom loves, and a flock of who bring cliches to life. Juster real respect for the hackneyed he likes to dust it off and you of the time when it shone and really enriched...
...whatever we learn has a purpose and whatever we do affects everything and everyone else, if even in the tiniest way. Why, when a housefly flaps his wings, a breeze goes round the world; when a speck of dust falls to the ground, the entire planet weighs a little more; and when you stamp your foot, the earth moves slightly off its course. Whenever you laugh, gladness spreads like the ripples in a pond; and whenever you're and, no one anywhere can be really happy. And it's much the same with knowledge, for whenever you learn something...
...definite foreign accent, thought Biff. The small foreigner was now attempting to dust off Biff's jacket...
...usual system in clean rooms, which are necessary for an ever-increasing number of industrial operations, is to keep dust particles from being released. Smoking is forbidden; so are ordinary pencils, which give off graphite particles. People who work in the clean rooms are "packaged" in special boots, hoods and coveralls and are vacuum-cleaned before they enter. The rooms themselves are vacuumed continually. But despite all these precautions, each cubic foot of their air still contains at least 1,000,000 dust particles that are .3 microns (.000012 in.) or larger in diameter. This is a vast improvement over...
...trick is to make the clean air from the filters keep the room clean. It flows at 1 m.p.h. (a very faint breeze) across the workbench and past the people working at it. Workmen can dress in ordinary clothes and smoke if they desire. Dandruff, tobacco smoke, pencil dust and any other particles generated are carried away by the clean air, whisked down through the grating floor, and discharged outdoors. Every six seconds the room gets a change of ultra-clean air. No particles get a chance to circulate, and as a result, Physicist Whitfield's room...